Method and system for producing a virtual output image from data obtained by an array of image capturing devices

a technology output image, which is applied in the field of method and system for producing a virtual output image from data obtained by an array of image capturing device, can solve the problems of noisy images, difficult to produce extended depth of field images, and so on, and achieve the effect of increasing possibilities

Active Publication Date: 2013-04-11
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0012]It is an object of the invention to provide a method and system with increased possibilities.

Problems solved by technology

However, although refocusing on a single plane is possible, the so-resulting image has a very limited depth of field.
It is difficult to produce extended depth of field images.
Ng et al also produced extended depth of field by extracting a single sub-aperture image, but this technique results in quite noisy images.
The resulting images are, however, quite noisy and / or require an active role of the user.
The known system, however, has only limited possibilities and does not provide for real-life simulating imaging in particular in interactive systems.

Method used

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  • Method and system for producing a virtual output image from data obtained by an array of image capturing devices
  • Method and system for producing a virtual output image from data obtained by an array of image capturing devices
  • Method and system for producing a virtual output image from data obtained by an array of image capturing devices

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Experimental program
Comparison scheme
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second embodiment

A second embodiment is given by:

a. Generating projected path of the image shift for each image capturing device of the array

b. Convolving the image of each image capturing device with a highpass filter perpendicular to the projected path and thereafter

c. Convolving the individual camera images with their respective projected path

[0254]This amounts to switching the sequence of the convolutions.

third embodiment

A third embodiment is given by:

a. Generating a projected path of the image shift for each image capturing device of the array, the path being determined with respect to a virtual camera position with respect to the array

b. Generating a convolution filter for each image by convolving its respective projected path with a highpass filter perpendicular to it.

c. Convolving the individual camera images with their respective filter as generated in b.

[0255]This embodiment is similar to FIG. 35.

[0256]The advantage of this aspect of the invention is the fact that the method is very fast, the disadvantage is that the calculation is approximate. This will reduce the computation power even further, at a cost of some accuracy.

[0257]Although a filter with fixed parameters can be used, preferably the high pass filter has parameters that are a function of the projected path, in particular of the length of the projected path.

[0258]Now that the convolution kernels have been decomposed into a set of ro...

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Abstract

In a method and system for providing virtual output images from an array of image capturing devices image data (Ii(s,t), I2(s,t)) is taken from the devices (Ci, C2). This image data is processed by convolving the image data with a function, e.g. the path (S) and thereafter deconvolving them, either after or before summation (SUM), with an inverse point spread function (IPSF) or a filter (HP) equivalent thereto to produce all-focus image data (I0(s,t)).

Description

FIELD OF THE INVENTION[0001]The invention relates to a method for producing output image data for a virtual output image from input image data of individual input images provided by an array of image capturing devices for capturing a number of individual images from different viewpoints,[0002]the method comprising adding and inverse filtering of corresponding pixel values of the individual input images based on multiple depth layers in a scene.[0003]The invention also relates to a system for constructing a virtual output image from input images obtained by an array of image capturing devices, the system comprising an array of image capturing devices for capturing images from different view points, wherein the system comprises a means for capturing image data from the image capturing devices of the array, the system comprising means for adding and inverse filtering of corresponding pixel values of the individual input images based on multiple depth layers in a scene.BACKGROUND OF THE...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G06T15/00
CPCH04N5/2254H04N5/23212H04N5/2628G06T2207/10052G06T15/00G06T5/003G06T5/20H04N13/0242H04N13/243H04N23/959H04N23/676
Inventor SCHMEITZ, HAROLD AGNES WILHELMUSDE BRUIJN, FREDERIK JAN
Owner KONINKLIJKE PHILIPS ELECTRONICS NV
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